On the whole, the whole thing is not bad. Only why I gave only 3 stars, the reason is that lasted mounting the Kunststoffschraubstücks to the faucet with a quarter of an hour. The material hardness of the connecting thread of the Aquastop is very soft and the internal thread slips away very easily and can be very difficult to screw on the metal threads of the faucet (canted repeatedly). Although I am technically very gifted, but I almost sent the whole part. Well that ends well ... has just leave at the end no matter how it screws. But so far everything is still sealing (after 3 wash loads) and also looks quite sophisticated and high quality made.